I have a xylotex 3 axis board and it says I have to set Vref before using it. How do I do that?
Read the manual first.
The section under Power tells you how to do it. You'll need a voltmeter.
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)